Methods and Apparatus to Benchmark a Computer System Based on Executing Instructions Using Different Numbers of Threads

1. A method to benchmark a computer system comprising: initiating a first thread to execute a set of instructions on a processor; initiating a second thread to execute the set of instructions on the processor; determining a first duration for the execution of the first thread; determining a second duration for the execution of the second thread; determining a first thread fairness value for the computer system based on the first duration and the second duration; determining a second thread fairness value for the computer system for an execution of the set of instructions using a second number of threads different from a first number of threads utilized for the first thread and the second thread; and generating a report indicating the first thread fairness value and the second thread fairness value.

2. A method as defined in claim 1 , wherein the first thread fairness value is a standard deviation for at least the first duration and the second duration.

3. A method as defined in claim 1 , further comprising serializing a workload to be processed by the set of instructions.

4. A method as defined in claim 1 , further comprising transmitting the workload from a client to a server.

5. A method as defined in claim 4 , wherein the client and the server execute on the same computer system.

6. A method as defined in claim 1 , further comprising receiving a user input indicative of a number of threads for execution.

7. A method as defined in claim 6 , wherein initiating the first thread and initiating the second thread comprises initiating the number of threads indicated by the user input.

8. A method as defined in claim 1 , further comprising receiving an indication from a server that the first thread has completed execution.

9. A method as defined in claim 8 , wherein determining the first duration comprises: determining a start time for the execution of the first thread; in response to the indication from the server that the first thread has completed execution, determining a stop time for the execution of the first thread; and subtracting the stop time from the start time to determine the first duration.

10. A method as defined in claim 1 , wherein determining the first thread fairness value comprises comparing the first duration and the second duration.

11. A method as defined in claim 1 , wherein determining the first thread fairness value comprises determining a standard deviation of the first duration and the second duration.

12. A method as defined in claim 1 , wherein determining the first thread fairness value comprises: determining an average of the first duration and the second duration; subtracting the first duration from the average to determine a first variance; subtracting the second duration from the average to determine a second variance; adding the first variance and the second variance to determine a total variance; and dividing the total variance by the number of threads to determine the first thread fairness value.

13. A computer readable storage device storing instructions that, when executed, cause a computer system to perform operations comprising: initiating a first thread to execute a set of instructions on a processor; initiating a second thread to execute the set of instructions on the processor; determining a first duration for the execution of the first thread; determining a second duration for the execution of the second thread; determining a first thread fairness value for the computer system based on the first duration and the second duration; determining a second thread fairness value for the computer system for an execution of the set of instructions using a second number of threads different from a first number of threads utilized for the first thread and the second thread; and generating a report indicating the first thread fairness value and the second thread fairness value.

14. A computer readable storage device as defined in claim 13 wherein the first thread fairness value is a standard deviation for at least the first duration and the second duration.

15. A computer readable storage device as defined in claim 13 wherein the instructions further cause the machine to serialize a workload to be processed by the set of instructions.

16. A computer readable storage device as defined in claim 15 , wherein the instructions further cause the machine to transmit the workload from a client to a server.

17. An apparatus to benchmark a computer system comprising: a server interface to receive an indication that a first thread has completed execution on a processor and receive an indication that a second thread has completed execution on the processor; and a report generator to determine a first duration for the execution of the first thread, determine a second duration for the execution of the second thread, determine a first thread fairness value for the computer system based on the first duration and the second duration, determine a second thread fairness value for the computer system using a second number of threads different from a first numbers of threads utilized for the first thread and the second thread, and generate a report indicating the first thread fairness value and the second thread fairness value.

18. An apparatus as defined in claim 17 , wherein the first thread fairness value is a standard deviation for at least the first duration and the second duration.

19. An apparatus as defined in claim 17 , further comprising a data serializer to serialize a workload to be executed by the first thread and the second thread.

20. An apparatus as defined in claim 19 , wherein the server interface is further to transmit the workload to a server.